1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * Copyright (C) 2007,2008 Øyvind Harboe *
6 * oyvind.harboe@zylin.com *
8 * Copyright (C) 2008, Duane Ellis *
9 * openocd@duaneeellis.com *
11 * part of this file is taken from libcli (libcli.sourceforge.net) *
12 * Copyright (C) David Parrish (david@dparrish.com) *
14 * This program is free software; you can redistribute it and/or modify *
15 * it under the terms of the GNU General Public License as published by *
16 * the Free Software Foundation; either version 2 of the License, or *
17 * (at your option) any later version. *
19 * This program is distributed in the hope that it will be useful, *
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
22 * GNU General Public License for more details. *
24 * You should have received a copy of the GNU General Public License *
25 * along with this program; if not, write to the *
26 * Free Software Foundation, Inc., *
27 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
28 ***************************************************************************/
34 /* see Embedder-HOWTO.txt in Jim Tcl project hosted on BerliOS*/
38 // @todo the inclusion of target.h here is a layering violation
41 #include "configuration.h"
43 #include "time_support.h"
44 #include "jim-eventloop.h"
47 Jim_Interp
*interp
= NULL
;
49 static int run_command(struct command_context
*context
,
50 struct command
*c
, const char *words
[], unsigned num_words
);
52 static void tcl_output(void *privData
, const char *file
, unsigned line
,
53 const char *function
, const char *string
)
55 Jim_Obj
*tclOutput
= (Jim_Obj
*)privData
;
56 Jim_AppendString(interp
, tclOutput
, string
, strlen(string
));
59 extern struct command_context
*global_cmd_ctx
;
61 void script_debug(Jim_Interp
*interp
, const char *name
,
62 unsigned argc
, Jim_Obj
*const *argv
)
64 LOG_DEBUG("command - %s", name
);
65 for (unsigned i
= 0; i
< argc
; i
++)
68 const char *w
= Jim_GetString(argv
[i
], &len
);
70 /* end of line comment? */
74 LOG_DEBUG("%s - argv[%d]=%s", name
, i
, w
);
78 static void script_command_args_free(const char **words
, unsigned nwords
)
80 for (unsigned i
= 0; i
< nwords
; i
++)
81 free((void *)words
[i
]);
84 static const char **script_command_args_alloc(
85 unsigned argc
, Jim_Obj
*const *argv
, unsigned *nwords
)
87 const char **words
= malloc(argc
* sizeof(char *));
92 for (i
= 0; i
< argc
; i
++)
95 const char *w
= Jim_GetString(argv
[i
], &len
);
96 /* a comment may end the line early */
100 words
[i
] = strdup(w
);
101 if (words
[i
] == NULL
)
103 script_command_args_free(words
, i
);
111 static int script_command(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
113 /* the private data is stashed in the interp structure */
115 struct command_context
*context
;
118 /* DANGER!!!! be careful what we invoke here, since interp->cmdPrivData might
119 * get overwritten by running other Jim commands! Treat it as an
120 * emphemeral global variable that is used in lieu of an argument
121 * to the fn and fish it out manually.
123 c
= interp
->cmdPrivData
;
126 LOG_ERROR("BUG: interp->cmdPrivData == NULL");
129 target_call_timer_callbacks_now();
130 LOG_USER_N("%s", ""); /* Keep GDB connection alive*/
132 script_debug(interp
, c
->name
, argc
, argv
);
135 const char **words
= script_command_args_alloc(argc
, argv
, &nwords
);
139 /* grab the command context from the associated data */
140 context
= Jim_GetAssocData(interp
, "context");
143 /* Tcl can invoke commands directly instead of via command_run_line(). This would
144 * happen when the Jim Tcl interpreter is provided by eCos.
146 context
= global_cmd_ctx
;
149 /* capture log output and return it */
150 Jim_Obj
*tclOutput
= Jim_NewStringObj(interp
, "", 0);
151 /* a garbage collect can happen, so we need a reference count to this object */
152 Jim_IncrRefCount(tclOutput
);
154 log_add_callback(tcl_output
, tclOutput
);
156 retval
= run_command(context
, c
, (const char **)words
, nwords
);
158 log_remove_callback(tcl_output
, tclOutput
);
160 /* We dump output into this local variable */
161 Jim_SetResult(interp
, tclOutput
);
162 Jim_DecrRefCount(interp
, tclOutput
);
164 script_command_args_free(words
, nwords
);
166 int *return_retval
= Jim_GetAssocData(interp
, "retval");
167 if (return_retval
!= NULL
)
169 *return_retval
= retval
;
172 return (retval
== ERROR_OK
)?JIM_OK
:JIM_ERR
;
175 static Jim_Obj
*command_name_list(struct command
*c
)
177 Jim_Obj
*cmd_list
= c
->parent
?
178 command_name_list(c
->parent
) :
179 Jim_NewListObj(interp
, NULL
, 0);
180 Jim_ListAppendElement(interp
, cmd_list
,
181 Jim_NewStringObj(interp
, c
->name
, -1));
186 static void command_helptext_add(Jim_Obj
*cmd_list
, const char *help
)
188 Jim_Obj
*cmd_entry
= Jim_NewListObj(interp
, NULL
, 0);
189 Jim_ListAppendElement(interp
, cmd_entry
, cmd_list
);
190 Jim_ListAppendElement(interp
, cmd_entry
,
191 Jim_NewStringObj(interp
, help
? : "", -1));
193 /* accumulate help text in Tcl helptext list. */
194 Jim_Obj
*helptext
= Jim_GetGlobalVariableStr(interp
,
195 "ocd_helptext", JIM_ERRMSG
);
196 if (Jim_IsShared(helptext
))
197 helptext
= Jim_DuplicateObj(interp
, helptext
);
198 Jim_ListAppendElement(interp
, helptext
, cmd_entry
);
201 /* nice short description of source file */
202 #define __THIS__FILE__ "command.c"
205 * Find a command by name from a list of commands.
206 * @returns The named command if found, or NULL.
208 static struct command
*command_find(struct command
*head
, const char *name
)
210 for (struct command
*cc
= head
; cc
; cc
= cc
->next
)
212 if (strcmp(cc
->name
, name
) == 0)
219 * Add the command to the end of linked list.
220 * @returns Returns false if the named command already exists in the list.
221 * Returns true otherwise.
223 static void command_add_child(struct command
**head
, struct command
*c
)
231 struct command
*cc
= *head
;
232 while (cc
->next
) cc
= cc
->next
;
236 struct command
* register_command(struct command_context
*context
,
237 struct command
*parent
, char *name
, command_handler_t handler
,
238 enum command_mode mode
, char *help
)
240 if (!context
|| !name
)
243 struct command
**head
= parent
? &parent
->children
: &context
->commands
;
244 struct command
*c
= command_find(*head
, name
);
248 c
= malloc(sizeof(struct command
));
250 c
->name
= strdup(name
);
253 c
->handler
= handler
;
257 command_add_child(head
, c
);
259 command_helptext_add(command_name_list(c
), help
);
261 /* just a placeholder, no handler */
262 if (c
->handler
== NULL
)
265 const char *full_name
= command_name(c
, '_');
267 const char *ocd_name
= alloc_printf("ocd_%s", full_name
);
268 Jim_CreateCommand(interp
, ocd_name
, script_command
, c
, NULL
);
269 free((void *)ocd_name
);
271 /* we now need to add an overrideable proc */
272 const char *override_name
= alloc_printf("proc %s {args} {"
273 "if {[catch {eval ocd_%s $args}] == 0} "
274 "{return \"\"} else {return -code error}}",
275 full_name
, full_name
);
276 Jim_Eval_Named(interp
, override_name
, __THIS__FILE__
, __LINE__
);
277 free((void *)override_name
);
279 free((void *)full_name
);
284 int unregister_all_commands(struct command_context
*context
)
286 struct command
*c
, *c2
;
291 while (NULL
!= context
->commands
)
293 c
= context
->commands
;
295 while (NULL
!= c
->children
)
298 c
->children
= c
->children
->next
;
305 context
->commands
= context
->commands
->next
;
316 int unregister_command(struct command_context
*context
, char *name
)
318 struct command
*c
, *p
= NULL
, *c2
;
320 if ((!context
) || (!name
))
321 return ERROR_INVALID_ARGUMENTS
;
324 c
= context
->commands
;
328 if (strcmp(name
, c
->name
) == 0)
337 /* first element in command list */
338 context
->commands
= c
->next
;
341 /* unregister children */
342 while (NULL
!= c
->children
)
345 c
->children
= c
->children
->next
;
360 /* remember the last command for unlinking */
368 void command_output_text(struct command_context
*context
, const char *data
)
370 if (context
&& context
->output_handler
&& data
) {
371 context
->output_handler(context
, data
);
375 void command_print_sameline(struct command_context
*context
, const char *format
, ...)
380 va_start(ap
, format
);
382 string
= alloc_vprintf(format
, ap
);
385 /* we want this collected in the log + we also want to pick it up as a tcl return
388 * The latter bit isn't precisely neat, but will do for now.
390 LOG_USER_N("%s", string
);
391 /* We already printed it above */
392 /* command_output_text(context, string); */
399 void command_print(struct command_context
*context
, const char *format
, ...)
404 va_start(ap
, format
);
406 string
= alloc_vprintf(format
, ap
);
409 strcat(string
, "\n"); /* alloc_vprintf guaranteed the buffer to be at least one char longer */
410 /* we want this collected in the log + we also want to pick it up as a tcl return
413 * The latter bit isn't precisely neat, but will do for now.
415 LOG_USER_N("%s", string
);
416 /* We already printed it above */
417 /* command_output_text(context, string); */
424 static char *__command_name(struct command
*c
, char delim
, unsigned extra
)
427 unsigned len
= strlen(c
->name
);
428 if (NULL
== c
->parent
) {
429 // allocate enough for the name, child names, and '\0'
430 name
= malloc(len
+ extra
+ 1);
431 strcpy(name
, c
->name
);
433 // parent's extra must include both the space and name
434 name
= __command_name(c
->parent
, delim
, 1 + len
+ extra
);
435 char dstr
[2] = { delim
, 0 };
437 strcat(name
, c
->name
);
441 char *command_name(struct command
*c
, char delim
)
443 return __command_name(c
, delim
, 0);
446 static int run_command(struct command_context
*context
,
447 struct command
*c
, const char *words
[], unsigned num_words
)
449 if (!((context
->mode
== COMMAND_CONFIG
) || (c
->mode
== COMMAND_ANY
) || (c
->mode
== context
->mode
)))
451 /* Config commands can not run after the config stage */
452 LOG_ERROR("Command '%s' only runs during configuration stage", c
->name
);
456 struct command_invocation cmd
= {
459 .argc
= num_words
- 1,
462 int retval
= c
->handler(&cmd
);
463 if (retval
== ERROR_COMMAND_SYNTAX_ERROR
)
465 /* Print help for command */
466 char *full_name
= command_name(c
, ' ');
467 if (NULL
!= full_name
) {
468 command_run_linef(context
, "help %s", full_name
);
473 else if (retval
== ERROR_COMMAND_CLOSE_CONNECTION
)
475 /* just fall through for a shutdown request */
477 else if (retval
!= ERROR_OK
)
479 /* we do not print out an error message because the command *should*
480 * have printed out an error
482 LOG_DEBUG("Command failed with error code %d", retval
);
488 int command_run_line(struct command_context
*context
, char *line
)
490 /* all the parent commands have been registered with the interpreter
491 * so, can just evaluate the line as a script and check for
494 /* run the line thru a script engine */
495 int retval
= ERROR_FAIL
;
497 /* Beware! This code needs to be reentrant. It is also possible
498 * for OpenOCD commands to be invoked directly from Tcl. This would
499 * happen when the Jim Tcl interpreter is provided by eCos for
502 Jim_DeleteAssocData(interp
, "context");
503 retcode
= Jim_SetAssocData(interp
, "context", NULL
, context
);
504 if (retcode
== JIM_OK
)
506 /* associated the return value */
507 Jim_DeleteAssocData(interp
, "retval");
508 retcode
= Jim_SetAssocData(interp
, "retval", NULL
, &retval
);
509 if (retcode
== JIM_OK
)
511 retcode
= Jim_Eval_Named(interp
, line
, __THIS__FILE__
, __LINE__
);
513 Jim_DeleteAssocData(interp
, "retval");
515 Jim_DeleteAssocData(interp
, "context");
517 if (retcode
== JIM_ERR
) {
518 if (retval
!= ERROR_COMMAND_CLOSE_CONNECTION
)
520 /* We do not print the connection closed error message */
521 Jim_PrintErrorMessage(interp
);
523 if (retval
== ERROR_OK
)
525 /* It wasn't a low level OpenOCD command that failed */
529 } else if (retcode
== JIM_EXIT
) {
531 /* exit(Jim_GetExitCode(interp)); */
536 result
= Jim_GetString(Jim_GetResult(interp
), &reslen
);
541 for (i
= 0; i
< reslen
; i
+= 256)
547 strncpy(buff
, result
+ i
, chunk
);
549 LOG_USER_N("%s", buff
);
551 LOG_USER_N("%s", "\n");
558 int command_run_linef(struct command_context
*context
, const char *format
, ...)
560 int retval
= ERROR_FAIL
;
563 va_start(ap
, format
);
564 string
= alloc_vprintf(format
, ap
);
567 retval
= command_run_line(context
, string
);
573 void command_set_output_handler(struct command_context
* context
,
574 command_output_handler_t output_handler
, void *priv
)
576 context
->output_handler
= output_handler
;
577 context
->output_handler_priv
= priv
;
580 struct command_context
* copy_command_context(struct command_context
* context
)
582 struct command_context
* copy_context
= malloc(sizeof(struct command_context
));
584 *copy_context
= *context
;
589 int command_done(struct command_context
*context
)
597 /* find full path to file */
598 static int jim_find(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
602 const char *file
= Jim_GetString(argv
[1], NULL
);
603 char *full_path
= find_file(file
);
604 if (full_path
== NULL
)
606 Jim_Obj
*result
= Jim_NewStringObj(interp
, full_path
, strlen(full_path
));
609 Jim_SetResult(interp
, result
);
613 static int jim_echo(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
617 const char *str
= Jim_GetString(argv
[1], NULL
);
622 static size_t openocd_jim_fwrite(const void *_ptr
, size_t size
, size_t n
, void *cookie
)
628 /* make it a char easier to read code */
632 if (ptr
== NULL
|| interp
== NULL
|| nbytes
== 0) {
636 /* do we have to chunk it? */
637 if (ptr
[nbytes
] == 0)
639 /* no it is a C style string */
640 LOG_USER_N("%s", ptr
);
643 /* GRR we must chunk - not null terminated */
653 memcpy(chunk
, ptr
, x
);
657 LOG_USER_N("%s", chunk
);
665 static size_t openocd_jim_fread(void *ptr
, size_t size
, size_t n
, void *cookie
)
667 /* TCL wants to read... tell him no */
671 static int openocd_jim_vfprintf(void *cookie
, const char *fmt
, va_list ap
)
682 cp
= alloc_vprintf(fmt
, ap
);
685 LOG_USER_N("%s", cp
);
692 static int openocd_jim_fflush(void *cookie
)
694 /* nothing to flush */
698 static char* openocd_jim_fgets(char *s
, int size
, void *cookie
)
705 static int jim_capture(Jim_Interp
*interp
, int argc
, Jim_Obj
*const *argv
)
710 const char *str
= Jim_GetString(argv
[1], NULL
);
712 /* capture log output and return it */
713 Jim_Obj
*tclOutput
= Jim_NewStringObj(interp
, "", 0);
714 /* a garbage collect can happen, so we need a reference count to this object */
715 Jim_IncrRefCount(tclOutput
);
717 log_add_callback(tcl_output
, tclOutput
);
719 retcode
= Jim_Eval_Named(interp
, str
, __THIS__FILE__
, __LINE__
);
721 log_remove_callback(tcl_output
, tclOutput
);
723 /* We dump output into this local variable */
724 Jim_SetResult(interp
, tclOutput
);
725 Jim_DecrRefCount(interp
, tclOutput
);
730 /* sleep command sleeps for <n> miliseconds
731 * this is useful in target startup scripts
733 COMMAND_HANDLER(handle_sleep_command
)
738 if (strcmp(CMD_ARGV
[1], "busy") == 0)
741 return ERROR_COMMAND_SYNTAX_ERROR
;
743 else if (CMD_ARGC
< 1 || CMD_ARGC
> 2)
744 return ERROR_COMMAND_SYNTAX_ERROR
;
746 unsigned long duration
= 0;
747 int retval
= parse_ulong(CMD_ARGV
[0], &duration
);
748 if (ERROR_OK
!= retval
)
753 long long then
= timeval_ms();
754 while (timeval_ms() - then
< (long long)duration
)
756 target_call_timer_callbacks_now();
761 busy_sleep(duration
);
766 struct command_context
* command_init(const char *startup_tcl
)
768 struct command_context
* context
= malloc(sizeof(struct command_context
));
771 context
->mode
= COMMAND_EXEC
;
772 context
->commands
= NULL
;
773 context
->current_target
= 0;
774 context
->output_handler
= NULL
;
775 context
->output_handler_priv
= NULL
;
779 /* Create an interpreter */
780 interp
= Jim_CreateInterp();
781 /* Add all the Jim core commands */
782 Jim_RegisterCoreCommands(interp
);
785 #if defined(_MSC_VER)
786 /* WinXX - is generic, the forward
787 * looking problem is this:
791 * "winxx" is generic.
794 #elif defined(__linux__)
796 #elif defined(__DARWIN__)
798 #elif defined(__CYGWIN__)
800 #elif defined(__MINGW32__)
802 #elif defined(__ECOS)
805 #warn unrecognized host OS...
808 Jim_SetGlobalVariableStr(interp
, "ocd_HOSTOS",
809 Jim_NewStringObj(interp
, HostOs
, strlen(HostOs
)));
811 Jim_CreateCommand(interp
, "ocd_find", jim_find
, NULL
, NULL
);
812 Jim_CreateCommand(interp
, "echo", jim_echo
, NULL
, NULL
);
813 Jim_CreateCommand(interp
, "capture", jim_capture
, NULL
, NULL
);
815 /* Set Jim's STDIO */
816 interp
->cookie_stdin
= interp
;
817 interp
->cookie_stdout
= interp
;
818 interp
->cookie_stderr
= interp
;
819 interp
->cb_fwrite
= openocd_jim_fwrite
;
820 interp
->cb_fread
= openocd_jim_fread
;
821 interp
->cb_vfprintf
= openocd_jim_vfprintf
;
822 interp
->cb_fflush
= openocd_jim_fflush
;
823 interp
->cb_fgets
= openocd_jim_fgets
;
826 Jim_EventLoopOnLoad(interp
);
828 if (Jim_Eval_Named(interp
, startup_tcl
, "embedded:startup.tcl",1) == JIM_ERR
)
830 LOG_ERROR("Failed to run startup.tcl (embedded into OpenOCD)");
831 Jim_PrintErrorMessage(interp
);
835 register_command(context
, NULL
, "sleep",
836 handle_sleep_command
, COMMAND_ANY
,
837 "<n> [busy] - sleep for n milliseconds. "
838 "\"busy\" means busy wait");
843 int command_context_mode(struct command_context
*cmd_ctx
, enum command_mode mode
)
846 return ERROR_INVALID_ARGUMENTS
;
848 cmd_ctx
->mode
= mode
;
852 void process_jim_events(void)
855 static int recursion
= 0;
860 Jim_ProcessEvents (interp
, JIM_ALL_EVENTS
| JIM_DONT_WAIT
);
866 void register_jim(struct command_context
*cmd_ctx
, const char *name
,
867 Jim_CmdProc cmd
, const char *help
)
869 Jim_CreateCommand(interp
, name
, cmd
, NULL
, NULL
);
871 Jim_Obj
*cmd_list
= Jim_NewListObj(interp
, NULL
, 0);
872 Jim_ListAppendElement(interp
, cmd_list
,
873 Jim_NewStringObj(interp
, name
, -1));
875 command_helptext_add(cmd_list
, help
);
878 #define DEFINE_PARSE_NUM_TYPE(name, type, func, min, max) \
879 int parse##name(const char *str, type *ul) \
883 LOG_ERROR("Invalid command argument"); \
884 return ERROR_COMMAND_ARGUMENT_INVALID; \
887 *ul = func(str, &end, 0); \
890 LOG_ERROR("Invalid command argument"); \
891 return ERROR_COMMAND_ARGUMENT_INVALID; \
893 if ((max == *ul) && (ERANGE == errno)) \
895 LOG_ERROR("Argument overflow"); \
896 return ERROR_COMMAND_ARGUMENT_OVERFLOW; \
898 if (min && (min == *ul) && (ERANGE == errno)) \
900 LOG_ERROR("Argument underflow"); \
901 return ERROR_COMMAND_ARGUMENT_UNDERFLOW; \
905 DEFINE_PARSE_NUM_TYPE(_ulong
, unsigned long , strtoul
, 0, ULONG_MAX
)
906 DEFINE_PARSE_NUM_TYPE(_ullong
, unsigned long long, strtoull
, 0, ULLONG_MAX
)
907 DEFINE_PARSE_NUM_TYPE(_long
, long , strtol
, LONG_MIN
, LONG_MAX
)
908 DEFINE_PARSE_NUM_TYPE(_llong
, long long, strtoll
, LLONG_MIN
, LLONG_MAX
)
910 #define DEFINE_PARSE_WRAPPER(name, type, min, max, functype, funcname) \
911 int parse##name(const char *str, type *ul) \
914 int retval = parse##funcname(str, &n); \
915 if (ERROR_OK != retval) \
918 return ERROR_COMMAND_ARGUMENT_OVERFLOW; \
920 return ERROR_COMMAND_ARGUMENT_UNDERFLOW; \
925 #define DEFINE_PARSE_ULONG(name, type, min, max) \
926 DEFINE_PARSE_WRAPPER(name, type, min, max, unsigned long, _ulong)
927 DEFINE_PARSE_ULONG(_uint
, unsigned, 0, UINT_MAX
)
928 DEFINE_PARSE_ULONG(_u32
, uint32_t, 0, UINT32_MAX
)
929 DEFINE_PARSE_ULONG(_u16
, uint16_t, 0, UINT16_MAX
)
930 DEFINE_PARSE_ULONG(_u8
, uint8_t, 0, UINT8_MAX
)
932 #define DEFINE_PARSE_LONG(name, type, min, max) \
933 DEFINE_PARSE_WRAPPER(name, type, min, max, long, _long)
934 DEFINE_PARSE_LONG(_int
, int, n
< INT_MIN
, INT_MAX
)
935 DEFINE_PARSE_LONG(_s32
, int32_t, n
< INT32_MIN
, INT32_MAX
)
936 DEFINE_PARSE_LONG(_s16
, int16_t, n
< INT16_MIN
, INT16_MAX
)
937 DEFINE_PARSE_LONG(_s8
, int8_t, n
< INT8_MIN
, INT8_MAX
)
939 static int command_parse_bool(const char *in
, bool *out
,
940 const char *on
, const char *off
)
942 if (strcasecmp(in
, on
) == 0)
944 else if (strcasecmp(in
, off
) == 0)
947 return ERROR_COMMAND_SYNTAX_ERROR
;
951 int command_parse_bool_arg(const char *in
, bool *out
)
953 if (command_parse_bool(in
, out
, "on", "off") == ERROR_OK
)
955 if (command_parse_bool(in
, out
, "enable", "disable") == ERROR_OK
)
957 if (command_parse_bool(in
, out
, "true", "false") == ERROR_OK
)
959 if (command_parse_bool(in
, out
, "yes", "no") == ERROR_OK
)
961 if (command_parse_bool(in
, out
, "1", "0") == ERROR_OK
)
963 return ERROR_INVALID_ARGUMENTS
;
966 COMMAND_HELPER(handle_command_parse_bool
, bool *out
, const char *label
)
970 const char *in
= CMD_ARGV
[0];
971 if (command_parse_bool_arg(in
, out
) != ERROR_OK
)
973 LOG_ERROR("%s: argument '%s' is not valid", CMD_NAME
, in
);
974 return ERROR_INVALID_ARGUMENTS
;
979 LOG_INFO("%s is %s", label
, *out
? "enabled" : "disabled");
982 return ERROR_INVALID_ARGUMENTS
;
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